I am running poclbm to mine with default ask rate. i use flags -v -w128 -f1.Today, it stopped mining saying reduce ask rate..so, more than 3 hours of no mining. Only block detected using long poll is displayed.Why suddenly i am asked to change ask rate?Do , i have to change ask rate every few hours or minutes..?I was running this same file with same flags for more than 10-15 days, since its released. last version of pocblm.exe (25/03/11).Is anything changed?